1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2 ; RUN: llc < %s -mtriple=aarch64-- | FileCheck %s
4 ; Each pair of tests should be logically equivalent,
5 ; so codegen should be the same and optimal for each pair.
7 define <4 x float> @splat0_before_fmul_constant(<4 x float> %a) {
8 ; CHECK-LABEL: splat0_before_fmul_constant:
10 ; CHECK-NEXT: fmov v1.4s, #3.00000000
11 ; CHECK-NEXT: fmul v0.4s, v1.4s, v0.s[0]
13 %splat = shufflevector <4 x float> %a, <4 x float> undef, <4 x i32> zeroinitializer
14 %mul = fmul <4 x float> %splat, <float 3.0, float 3.0, float 3.0, float 3.0>
18 define <4 x float> @splat0_after_fmul_constant(<4 x float> %a) {
19 ; CHECK-LABEL: splat0_after_fmul_constant:
21 ; CHECK-NEXT: fmov v1.4s, #3.00000000
22 ; CHECK-NEXT: fmul v0.4s, v0.4s, v1.4s
23 ; CHECK-NEXT: dup v0.4s, v0.s[0]
25 %mul = fmul <4 x float> %a, <float 3.0, float 42.0, float 3.0, float 3.0>
26 %splat = shufflevector <4 x float> %mul, <4 x float> undef, <4 x i32> zeroinitializer
27 ret <4 x float> %splat
30 ; Try different type and splat lane.
32 define <2 x double> @splat1_before_fmul_constant(<2 x double> %a) {
33 ; CHECK-LABEL: splat1_before_fmul_constant:
35 ; CHECK-NEXT: fmov v1.2d, #5.00000000
36 ; CHECK-NEXT: fmul v0.2d, v1.2d, v0.d[1]
38 %splat = shufflevector <2 x double> %a, <2 x double> undef, <2 x i32> <i32 1, i32 1>
39 %mul = fmul <2 x double> %splat, <double 5.0, double 5.0>
43 define <2 x double> @splat1_after_fmul_constant(<2 x double> %a) {
44 ; CHECK-LABEL: splat1_after_fmul_constant:
46 ; CHECK-NEXT: fmov v1.2d, #5.00000000
47 ; CHECK-NEXT: fmul v0.2d, v0.2d, v1.2d
48 ; CHECK-NEXT: dup v0.2d, v0.d[1]
50 %mul = fmul <2 x double> %a, <double -1.0, double 5.0>
51 %splat = shufflevector <2 x double> %mul, <2 x double> undef, <2 x i32> <i32 1, i32 1>
52 ret <2 x double> %splat
57 define <2 x double> @splat1_before_fmul(<2 x double> %a, <2 x double> %b) {
58 ; CHECK-LABEL: splat1_before_fmul:
60 ; CHECK-NEXT: fmul v0.2d, v0.2d, v1.2d
61 ; CHECK-NEXT: dup v0.2d, v0.d[1]
63 %splata = shufflevector <2 x double> %a, <2 x double> undef, <2 x i32> <i32 1, i32 1>
64 %splatb = shufflevector <2 x double> %b, <2 x double> undef, <2 x i32> <i32 1, i32 1>
65 %mul = fmul <2 x double> %splata, %splatb
69 define <2 x double> @splat1_after_fmul(<2 x double> %a, <2 x double> %b) {
70 ; CHECK-LABEL: splat1_after_fmul:
72 ; CHECK-NEXT: fmul v0.2d, v0.2d, v1.2d
73 ; CHECK-NEXT: dup v0.2d, v0.d[1]
75 %mul = fmul <2 x double> %a, %b
76 %splat = shufflevector <2 x double> %mul, <2 x double> undef, <2 x i32> <i32 1, i32 1>
77 ret <2 x double> %splat
82 define <4 x i32> @splat2_before_mul_constant(<4 x i32> %a) {
83 ; CHECK-LABEL: splat2_before_mul_constant:
85 ; CHECK-NEXT: movi v1.4s, #3
86 ; CHECK-NEXT: mul v0.4s, v1.4s, v0.s[2]
88 %splat = shufflevector <4 x i32> %a, <4 x i32> undef, <4 x i32> <i32 2, i32 undef, i32 2, i32 undef>
89 %mul = mul <4 x i32> %splat, <i32 3, i32 3, i32 3, i32 3>
93 define <4 x i32> @splat2_after_mul_constant(<4 x i32> %a) {
94 ; CHECK-LABEL: splat2_after_mul_constant:
96 ; CHECK-NEXT: movi v1.4s, #3
97 ; CHECK-NEXT: mul v0.4s, v0.4s, v1.4s
98 ; CHECK-NEXT: dup v0.4s, v0.s[2]
100 %mul = mul <4 x i32> %a, <i32 3, i32 3, i32 3, i32 3>
101 %splat = shufflevector <4 x i32> %mul, <4 x i32> undef, <4 x i32> <i32 2, i32 undef, i32 2, i32 undef>
105 ; Different type, lane, and 2 variable operands.
107 define <8 x i16> @splat1_before_mul(<8 x i16> %a, <8 x i16> %b) {
108 ; CHECK-LABEL: splat1_before_mul:
110 ; CHECK-NEXT: mul v0.8h, v0.8h, v1.8h
111 ; CHECK-NEXT: dup v0.8h, v0.h[1]
113 %splata = shufflevector <8 x i16> %a, <8 x i16> undef, <8 x i32> <i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1>
114 %splatb = shufflevector <8 x i16> %b, <8 x i16> undef, <8 x i32> <i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1>
115 %mul = mul <8 x i16> %splata, %splatb
119 define <8 x i16> @splat1_after_mul(<8 x i16> %a, <8 x i16> %b) {
120 ; CHECK-LABEL: splat1_after_mul:
122 ; CHECK-NEXT: mul v0.8h, v0.8h, v1.8h
123 ; CHECK-NEXT: dup v0.8h, v0.h[1]
125 %mul = mul <8 x i16> %a, %b
126 %splat = shufflevector <8 x i16> %mul, <8 x i16> undef, <8 x i32> <i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1>
130 ; Multiple multiplies.
132 define <4 x float> @splat0_before_fmul_fmul_constant(<4 x float> %a) {
133 ; CHECK-LABEL: splat0_before_fmul_fmul_constant:
135 ; CHECK-NEXT: fmov v1.4s, #3.00000000
136 ; CHECK-NEXT: fmul v0.4s, v0.4s, v1.4s
137 ; CHECK-NEXT: fmov v1.4s, #6.00000000
138 ; CHECK-NEXT: fmul v0.4s, v1.4s, v0.s[0]
140 %splat1 = shufflevector <4 x float> %a, <4 x float> undef, <4 x i32> zeroinitializer
141 %mul1 = fmul <4 x float> %splat1, <float 3.0, float 3.0, float 3.0, float 3.0>
142 %splat2 = shufflevector <4 x float> %mul1, <4 x float> undef, <4 x i32> zeroinitializer
143 %mul2 = fmul <4 x float> %splat2, <float 6.0, float 6.0, float 6.0, float 6.0>
144 ret <4 x float> %mul2
147 define <4 x float> @splat0_after_fmul_fmul_constant(<4 x float> %a) {
148 ; CHECK-LABEL: splat0_after_fmul_fmul_constant:
150 ; CHECK-NEXT: fmov v1.4s, #3.00000000
151 ; CHECK-NEXT: fmul v0.4s, v0.4s, v1.4s
152 ; CHECK-NEXT: fmov v1.4s, #6.00000000
153 ; CHECK-NEXT: fmul v0.4s, v0.4s, v1.4s
154 ; CHECK-NEXT: dup v0.4s, v0.s[0]
156 %mul1 = fmul <4 x float> %a, <float 3.0, float 42.0, float 3.0, float 3.0>
157 %mul2 = fmul <4 x float> %mul1, <float 6.0, float 42.0, float 3.0, float 3.0>
158 %splat = shufflevector <4 x float> %mul2, <4 x float> undef, <4 x i32> zeroinitializer
159 ret <4 x float> %splat